Identify the reaction force for the following action, by filling in the blanks. Bowling ball pushes pin leftwards- pushes the bowling ball .

The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?

How do you tell if someone actually cares about you? and just say they do?

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?